Plane Trigonometry
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Right Triangle
Right Triangle
Area of Triangle
Area of Triangle
A = ½ ab
Complimentary Angles:
β + θ = 90°
Pythagorean theorem:
Pythagorean theorem:
In any right triangle, the square of the longest side (hypotenuse) equals the sum of the squares of the other two sides.
c² = a² + b²
Trigonometric Functions of Right Triangle (SOH-CAH-TOA)
Trigonometric Functions of Right Triangle (SOH-CAH-TOA)
Relative to angle θ, a is the opposite side and b is the adjacent side.
Basic Trigonometric Identities:
Basic Trigonometric Identities:
Pythagorean Relations
Pythagorean Relations